UniKey API Reference for C Language

Find a UniKey dongle

API Prototype
long UniKey_Find( WORD* pHandle ,
DWORD* pSetting1 ,
DWORD* pSetting2 ) ;

Description
Check if a specific UniKey is attached to the USB port. This is the first API to start a UniKey session.

Parameters

Parameter	Meaning
*pHandle	[out] Dongle handle
*pSetting1	*[in] Working Mode (UniKey PRO only), useless for UniKey STD
	[out] Hardware ID
*pSetting2	*[in] Access Mode (UniKey PRO only), useless for UniKey STD(UniKey PRO only)
	[out] Number of dongle attached , useless for UniKey STD

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NO_UNIEKY	200	No UniKey dongle

Find the Next UniKey dongle

API Prototype
Long UniKey_Find_Next( WORD* pHandle ,
DWORD* pSetting1 ,
DWORD* pSetting2 ) ;

Description
Check if another UniKey is attached to the USB port.

Parameters

Parameter	Meaning
*pHandle	[out] Dongle handle
*pSetting1	*[in] Working Mode (UniKey PRO only), useless for UniKey STD
	[out] Hardware ID
*pSetting2	*[in] Access Mode (UniKey PRO only), useless for UniKey STD(UniKeyPro only)
	[out] Number of dongle attached , useless for UniKey STD

Return values

Marco	Value
SUCCESS	0
ERROR_UNIKEY_NOMORE	214
ERROR_UNIKEY_NEED_FIND	215

Logon UniKey Dongle

API Prototype
long UniKey_User_Logon( WORD* pHandle ,
WORD* pPassword1 ,
WORD* pPassword2 ) ;
------------------------------------------------------------------------------------------- For UniKey Drive, the API Prototype is UniKey_User_Logon (WORD* pHandle, DWORD* pPassword1, DWORD* pPassword2);
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Description
Logon a UniKey dongle with specified passwords. This API should be called in the released software in order to improve security.

Parameters

Parameter	Meaning
*pPassword1	[in]Password 1
*pPassword2	[in]Password 2
*pHandle	[out] Dongle handle

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NOT_FOUND	200	No UniKey dongle
ERROR_UNIKEY_INVALID_PASSWORD	201	UniKey dongle found, but Basic passwords are incorrect
ERROR_UNIKEY_INVALID_PASSWORD_OR_ID	202	Wrong password or UniKey HID

Logon UniKey Dongle in vendor mode

API Prototype
long UniKey_Vender_Logon( WORD* pHandle ,
WORD* pPassword1 ,
WORD* pPassword2 ,
WORD* pPassword3 ,
WORD* pPassword4 ) ;
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For UniKey Drive, the API Prototype is UniKey_Vender_Logon(WORD* pHandle, DWORD* pPassword1, DWORD* pPassword2, DWORD* pPassword3, DWORD* pPassword4);
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Description
Logon a UniKey dongle in vendor mode with specified passwords. This API helps software vendors to logon the UniKey dongle in vendor mode, and get the full permission to UniKey dongle.
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We do NOT advise you to enclose this API in the final released software. This API is only for software vendor’s usage.
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If password3 or password4 is wrong while password1 and password2 is correct, the dongle is also logged on in user mode automatically.
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Parameters

Parameter	Meaning
*pPassword1	[in]Password 1
*pPassword2	[in]Password 2
*pPassword3	[in]Password 3
*pPassword4	[in]Password 4
*pHandle	[out] Dongle handle

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NOT_FOUND	200	No UniKey dongle
ERROR_UNIKEY_INVALID_PASSWORD	201	Found UniKey dongle, but Basic passwords are incorrect
ERROR_UNIKEY_INVALID_PASSWORD_OR_ID	202	Wrong password or UniKey HID

Logoff the UniKey dongle

API Prototype
long UniKey_Logoff( WORD* pHandle ) ;

Description
Logoff a UniKey dongle with a specific handle. This API should be called at the end of UniKey session.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NOT_FOUND	200	No UniKey dongle
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle

Get the UniKey dongle 's Type

API Prototype
long UniKey_Get_Type( WORD* pHandle ,
DWORD* type ) ;

Description
UniKey_Get_Type can help you get the type of the UniKey dongle.
The return value of type will indicate the type of the UniKey dongle.
UNIKEY_TYPE_TIME 101
UNIKEY_TYPE_PRO 102
UNIKEY_TYPE_STD 103

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*type	[out] The value indicating the type of your UniKey dongle

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_GET_TYPE	237	UniKey Get Type Error

Read UniKey dongle memory

API Prototype
long UniKey_Read_Memory( WORD* pHandle ,
WORD* pStartAddress ,
WORD* pBufferLength ,
BYTE* pBuffer ) ;

Description
Read the contents of the Memory. This API needs to be called after logon of a UniKey dongle.

Parameters

Parameter	Meaning
*handle*pHandle	[in] Dongle handle
*pStartAddress	[in] Offset of Memory
*pBufferLenght	[in] Number of bytes to read
pBbuffer	[out] Pointer to the buffer containing the data to be read

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_READ_MEMORY	207	Read Error
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_NEED_OPEN	215	No logon dongle before operating dongle

Write to UniKey dongle memory

API Prototype
long UniKey_Write_Memory( WORD* pHandle ,
WORD* pStartAddress ,
WORD* pBufferLength ,
BYTE* pBuffer ) ;

Description
Write data into the memory. This API needs to be called after logging on to a UniKey dongle.

Parameters

Parameter	Meaning
*handle*pHandle	[in] Dongle handle
*pStartAddress	[in] Offset of the memory
*pBufferLength	[in] Number of bytes to write
pBbuffer	[in] Pointer to the buffer containing the data to be written

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_WRITE_MEMORY	207	Write Error
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_VERIFY_ADV_PASSWORD	223	Advanced passwords (password3 and passowrd4) not verified

---

To write the last 2k memory (for 2048 – 4096), you need to verify all the 4 passwords (vendor mode) to obtain full permission to the dongle.
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UniKey_Read_Memory and UniKey_Write_Memory provide basic reading and writing functions to the dongle. You can store general information via such functions. And various levels of security can be applied too.
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Generate a Random Number

API Prototype
long UniKey_Random( WORD* pHandle ,
WORD* pReturn1 ,
WORD* pReturn2 ,
WORD* pReturn3 ,
WORD* pReturn4 ) ;

Description
Generate a random number from the dongle.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pReturn1	[out] Random number
*pReturn2	[out] Random number
*pReturn3	[out] Random number
*pReturn4	[out] Random number

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_RANDOM	209	Random number Error

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UNIKEY_RANDOM is to generate a random number inside the dongle. The UniKey dongle computing engine generates the number and the hardware of the dongle is the seed for the random number.
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Generate Seed Code Return values

API Prototype
long UniKey_Seed( WORD* pHandle ,
DWORD* pSeed ,
WORD* pReturn1 ,
WORD* pReturn2 ,
WORD* pReturn3 ,
WORD* pReturn4 ) ;

Description
Get return codes from the input of a seed code. This API return for values which are related to pSeed and UniKey dongle’s password.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pSeed	[in] Seed Code
*pReturn1	[out] Return Code 1
*pReturn2	[out] Return Code 2
*pReturn3	[out] Return Code 3
*pReturn4	[out] Return Code 4

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_SEED	210	Seed code Error

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UniKey_Seed generate a set of seed codes. All of these seed codes are based on the password. It provides another method to verify the password and check the insertion of the dongle. Apart from this, the seed codes can be used to involve in other computation, for example, you use the seed returned as a 64-bit long encryption key.
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Write the Soft ID

API Prototype
long UniKey_Write_SoftID( WORD* pHandle ,
DWORD* pSoftID ) ;

Description
Write the vendor defined SoftID.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pSoftID	[in] Soft ID

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_SET_SOFTID	203	Set UniKey ID wrong

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You need to verify all 4 passwords (vendor mode) to write the SoftID.
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Read Soft ID

API Prototype
long UniKey_Read_SoftID( WORD* pHandle ,
DWORD* pSoftID ) ;

Description
Read the user defined SoftID.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pSoftID	[out] Soft ID

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle

---

UniKey_Write_SoftID and UniKey_Read_SoftID provide a means to make a soft (write-able) ID for each software. You can write different software ID for each software and call UNIKEY_READ_SOFTID to check if the software ID is correct.
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Set a UniKey License module

API Prototype
long UniKey_Set_Module( WORD* pHandle ,
WORD* pModule ,
WORD* pValue ,
WORD* pDecrease ) ;

Description
To write a value to a specific UniKey license module and set the Decrement attribute.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pModule	[in] License module Number
*pValue	[in] License module Unit Value
*pDecrease	[in] Decreasing attribute. If decreasing is allowed (1 = allowed, 0 = not allowed)

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	202	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_MODULE	216	License module error

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A successful operation will result in license module unit # “*pModule” storing value “*pValue” and the Decrement attribute set to “0” or “1”
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---

You need verify 4 passwords (vendor mode) to set a module value successfully.
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Get a UniKey License module

API Prototype
long UniKey_Get_Module( WORD* pHandle ,
WORD* pModule ,
WORD* pValue ) ;

Description
Get a value from a specific UniKey license module.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pModule	[in] Module Number
*pValue	[out] Return the value in module

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	202	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_MODULE	216	License module error

---

You need verify 2 passwords (user mode) to get a module value successfully.
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Check a UniKey License module

API Prototype
long UniKey_Check_Module( WORD* pHandle ,
WORD* pModule ,
WORD* pValue ,
WORD* pDecrease ) ;

Description
Read the attributes of a specific UniKey license module.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pModule	[in] License module Number
*pValue	[out] Validity (1 = license module value is not zero)
*pDecrease	[out] Decrement attribute (1 = license module can be decreased)

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	202	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_MODULE	216	License module error

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A successful operation will result in “*pValue” with value from the Validity (1 = license module value is not zero), and “*pDecrease” with the value from the Decrement attribute (1 = license module can be decreased).

The value of a license module cannot be read out directly and it is invisible to end users.
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UniKey_Set_Module and UniKey_Check_Module provide an easy mean to implement software limitation. For example, if you want to set a software can be only executed 3 times, so you can call UNIKEY_SET_MODULE to set a license module (let us say license module 0) as 3. And when each execution, we decrease the license module, if the license module is invalid (zero), we stop the software. Apart from this, we can implement a module-selling model with help of license module functions. For example, the software has four function modules, A, B, C and D. And we can map the function modules to the license module in the UniKey dongle. Let us say the function module A is mapped to license module 0, B to 1, C to 2 and D to 3. If a customer only buys function A, B, you just need to enable the license module 0 and 1, and leave 2 and 3 as zero. So only function module A and B can be executed. If the customer buys more function, you can use UniKey remote update function to update the dongle remotely.
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Write Arithmetic

API Prototype
long UniKey_Write_Arithmetic( WORD* pHandle ,
WORD* pStartAddress ,
BYTE* pBuffer ) ;

Description
Write user-defined mathematical algorithms.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pStartAddress	[in] Offset of first instruction
*pBuffer	[in] Pointer to the algorithm command string

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_AR_BAD_COMMAND	217	Arithmetic instruction Error
ERROR_UNIKEY_AR_UNKNOWN_OPCODE	218	Arithmetic operator Error
ERROR_UNIKEY_AR_WRON_GBEGIN	219	Const number can't use on first arithmetic instruction
ERROR_UNIKEY_AR_WRONG_END	220	Const number can't use on last arithmetic instruction
ERROR_UNIKEY_AR_VALUE_OVERFLOW	221	Const number > 63

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A successful operation will result in the user-defined algorithm populated with the algorithm command string from the buffer.
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---

UniKey_Write_Arithmetic is called when you write a series of algorithms into the dongle. This function is only called at software vendor side. For example, if you have a serial number generate algorithm, and you want to perform this algorithm inside the dongle, you need to call UniKey_Write_Arithmetic.
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User-defined Algorithm Calculate 1

API Prototype
long UniKey_Calculate1( WORD* pHandle ,
DWORD* pStartAddress ,
DWORD* pModule ,
WORD* pRegA ,
WORD* pRegB ,
WORD* pRegC ,
WORD* pRegD ) ;

Description
Return the results of a calculation performed in UniKey, using input provided by the developer and the CALCULATE1 function.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pStartAddress	[in] Start point of calculation
*pModule	[in] License module number
*p1	[in, out] Register A
*p2	[in, out] Register B
*p3	[in, out] Register C
*p4	[in, out] Register D

Return value

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_AR_BAD_COMMAND	217	Arithmetic instruction Error
ERROR_UNIKEY_AR_UNKNOWN_OPCODE	218	Arithmetic operator Error
ERROR_UNIKEY_AR_WRON_GBEGIN	219	Const number can't use on first arithmetic instruction
ERROR_UNIKEY_AR_WRONG_END	220	Const number can't use on last arithmetic instruction
ERROR_UNIKEY_AR_VALUE_OVERFLOW	221	Const number > 63

---

When the calculation starts, the values of other internal registers are listed in the table below.
E and F are reversed hardware ID byte wisely. For example, if the hardware is 0x12345678 (in Hex), and E will be 0x7856, and F will be 0x3412.
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Internal Register	Meaning
E	HiWord of reversed hardware ID
F	LoWord of reversed hardware ID
G	Value stored in license module *pModule
H	Random number

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Examples
If the internal algorithm is A = B + C,
Then the call result is *p1 = *p2 + *p3.
For example: The internal algorithm is A = A + G; If *p1 = 0, then when returning you may guess the content of license module *p1 = *pModule. Though you cannot read the content of modules directly, you may determine the content by algorithm. If possible, you had better check the content with an algorithm, not only comparing it in the program.
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User-defined Algorithm Calculate 2

API Prototype
long UniKey_Calculate2( WORD* pHandle ,
DWORD* pStartAddress ,
DWORD* pSeed ,
WORD* pRegA ,
WORD* pRegB ,
WORD* pRegC ,
WORD* pRegD ) ;

Description
Return the results of a calculation performed in UniKey, using input provided by the developer and the CALCULATE2 function.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pStartAddress	[in] Start point of calculation
*pSeed	[in] Seed Code (32-bit)
*p1	[in, out] Register A
*p2	[in, out] Register B
*p3	[in, out] Register C
*p4	[in, out] Register D

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_AR_BAD_COMMAND	217	Arithmetic instruction Error
ERROR_UNIKEY_AR_UNKNOWN_OPCODE	218	Arithmetic operator Error
ERROR_UNIKEY_AR_WRON_GBEGIN	219	Const number can't use on first arithmetic instruction
ERROR_UNIKEY_AR_WRONG_END	220	Const number can't use on last arithmetic instruction
ERROR_UNIKEY_AR_VALUE_OVERFLOW	221	Const number > 63

---

When performing calculation 2, the initial values of register E, F, G and H are the Return values of seed code *pSeed, to make it simple, UNIKEY calls function SEED with seed code *pSeed, and writes the Return values to register E, F, G and H for the next operation.
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Internal Register	Meaning
E	Seed Result 1
F	Seed Result 2
G	Seed Result 3
H	Seed Result 4

 

User-defined Algorithm Calculate 3

API Prototype
long UniKey_Calculate3( WORD* pHandle ,
DWORD* pStartAddress ,
DWORD* pModule ,
WORD* pRegA ,
WORD* pRegB ,
WORD* pRegC ,
WORD* pRegD ) ;

Description
Return results of a calculation performed in UniKey, using input provided by the developer and the CALCULATE3 function.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pStartAddress	[in] Start point of calculation
*pModule	[in] License module number
*pRegA	[in, out] Register A
*pRegB	[in, out] Register B
*pRegC	[in, out] Register C
*pRegD	[in, out] Register D

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_AR_BAD_COMMAND	217	Arithmetic instruction Error
ERROR_UNIKEY_AR_UNKNOWN_OPCODE	218	Arithmetic operator Error
ERROR_UNIKEY_AR_WRON_GBEGIN	219	Const number can't use on first arithmetic instruction
ERROR_UNIKEY_AR_WRONG_END	220	Const number can't use on last arithmetic instruction
ERROR_UNIKEY_AR_VALUE_OVERFLOW	221	Const number > 63

---

When performing calculation 3, the initial values of register E, F, G and H are the content of license module *lp2 and *lp2+1/2/3.
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Internal Register	Meaning
E	Value in license module *lp2
F	Value in license module (*lp2 + 1)
G	Value in license module (*lp2 + 2)
H	Value in license module (*lp2 + 3)

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Examples
When calls calculation 3 with *pModule = 0, the initial values of register E, F, G and H are:
E = Value of license module 0
F = Value of license module 1
G = Value of license module 2
F = Value of license module 3
Note: The address will return to “0” when the license module address call exceeds 128. For example: Calculation 3 with *pModule = 126, the initial values of register E, F, G and H are:
E = Value of license module 126
F = Value of license module 127
G = Value of license module 0
H = Value of license module 1
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---

UniKey_Calculate is called when you want to perform the algorithm you have written inside the UniKey dongle. For example, you have written a formula into the dongle, you can call UniKey_Calculate to perform the algorithms and get the return of the formula.
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Decrease A License module

API Prototype
long UniKey_Module_Decrease( WORD* pHandle ,
WORD* pModule ) ;

Description
Decrease the value in a specified UniKey license module by “1”.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pModule	[in] License module number

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE	204	Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_MODULE	216	License module error

---

Please call UniKey_Check_Module to check if the license module is valid first.
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Generate a New Password

API Prototype
long UniKey_Generate_New_Password( WORD* pHandle ,
DWORD* pSeed ,
WORD* pPassword1 ,
WORD* pPassword2 ,
WORD* pPassword3 ,
WORD* pPassword4 ) ;

Description
Generate a new password via a seed code; the mapping from the seed code to the password is only one way. Without the seed, you cannot generate the same password.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pSeed	[in] Seed Code (32-bit)
*pPassword1	[out] New password 1
*pPassword2	[out] New password 2
*pPassword3	[out] New password 3
*pPassword4	[out] New password 4

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_VERIFY_ADV_PASSWORD	223	Advanced passwords (password3 and passowrd4) not verified
ERROR_UNIKEY_GENERATE_NEW_PASSWORD	225	Generate new password Error

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A file recording the new SEED and PASSWORDs will be created in the working path, and help the software vendor to recall everything. The passwords can be distributed to ordinary developers!
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---

1. The dongle will be automatically logoff after a new set of passwords are generated.
2. The dongle will be fully formatted when a new password is generated.
3. A file including new password and seed will be created in the working directory.
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Generate a New Encryption Key

API Prototype
long UniKey_Generate_Key( WORD* pHandle ,
DWORD* pKeyNumber ) ;

Description
Generate a new key in the specific key storage.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pKeyNumber	[in] Key Storage Number

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_INVALID_KEY_STORE	224	Wrong key storage number

---

1. This function will delete the original key in the key storage, and generate a new key.
2. The data encrypted by the old key cannot be decrypted by the new key.
3. Each key is 128-bit long.
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Generate a New Encryption Key Via Seed

API Prototype
long UniKey_Generate_Key_Via_Seed( WORD* pHandle ,
DWORD* pKeyNumber ,
WORD pSeed1 ,
WORD pSeed2 ,
WORD pSeed3 ,
WORD pSeed4 ) ;

Description
Generate a new key in the specific key storage via seed.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pKeyNumber	[in] Key Storage Number
*pSeed1	[in] Seed1
*pSeed2	[in] Seed2
*pSeed3	[in] Seed3
*pSeed4	[in] Seed4

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_INVALID_KEY_STORE	224	Wrong key storage number

---

1. This function will delete the original key in the key storage, and generate a new key via seed.
2. The data encrypted by the old key cannot be decrypted by the new key.
3. Each key is 128-bit long.
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Encrypt the Buffer with a Specific Encryption Key

API Prototype
long UniKey_Encrypt( WORD* pHandle ,
DWORD* pBufferLength ,
DWORD* pKeyNumber ,
BYTE* pBuffer ) ;

Description
Encrypt an amount of memory with a key. The length of data must be a multiple of 8.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pBufferLength	[in] Number of bytes to encrypt
*pKeyNumber	[in] Key Storage Number
*pBuffer	[in] Pointer to the data to be encrypted
[out] Pointer to the encrypted data

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_INVALID_KEY_STORE	224	Wrong key storage number
ERROR_UNIKEY_ENCRYPT_FAILED	228	Encrypt data error

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This function only performs an encryption operation, no compression functions are involved.
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Decrypt the Buffer with a Specific Encryption Key

API Prototype
long UniKey_Decrypt( WORD* pHandle ,
DWORD* pBufferLength ,
DWORD* pKeyNumber ,
BYTE* pBuffer ) ;

Description
Encrypt an amount of memory with a key. The length of data must be a multiple of 8.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pBufferLength	[in] Number of bytes to encrypt
*pKeyNumber	[in] Key Storage Number
*pBuffer	[in] Pointer to the data to be decrypted
[out] Pointer to the decrypted data

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	Not logon dongle before operating dongle
ERROR_UNIKEY_INVALID_KEY_STORE	224	Wrong key storage number
ERROR_UNIKEY_DECRYPT_FAILED	229	Decrypt data error

---

Please use the key that encrypted data to decrypt the data; otherwise you cannot decrypt the data.
---------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------
UniKey_Encrypt and UniKey_Decrypt offer a basic 128-bit encryption/decryption operation based on UniKey’s hardware. You can call these functions when an encryption or decryption operation is needed. For better security, you can encrypt the credential before saving it into the UniKey’s memory.
---------------------------------------------------------------------------------------------------

 

Make an MD5 Digest for a Certain Content

API Prototype
long UniKey_MD5( WORD* pHandle ,
DWORD* pBufferLength ,
DWORD* pType ,
BYTE* pBuffer ) ;

Description
Make an MD5 digest for a mount of content or data.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pBufferLength	[in] Number of bytes to MD5
*pBuffer	[in] Pointer to the data to be digested
[out] Pointer to the digested data

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle

 

Read UpdateTag

API Prototype
long UniKey_Read_UpdateTag( WORD* pHandle ,
DWORD* pUpdateTag ) ;

Description
Read UpdateTag from a specific dongle

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pUpdateTag	[out] UpdateTag

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_READ_UPDATETAG	226	Read UpdateTag error

 

Write UpdateTag

API Prototype
long UniKey_Write_UpdateTag( WORD* pHandle ,
DWORD* pUpdateTag ) ;

Description
Write UpdateTag into a specific dongle.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pUpdateTag	[in] UpdateTag

Return values

Marco	Value	Meaning
SUCCESS	0	Success
ERROR_UNIKEY_NEED_OPEN	212	No logon dongle before operating dongle
ERROR_UNIKEY_WRITE_UPDATETAG	227	Write UpdateTag error

---------------------------------------------------------------------------------------------------
UniKey_Read_UpdateTag APIs give software vendors an easy method to identify if the UniKey dongle needs to be updated. When distributing the software, software vendors may use the UpdateTag as an ID which shows if the dongle needs to update or has been updated. You can also use this Tag as a tracking ID for each update.
----------------------------------------------------------------------------------------------------

Get UniKey Library Version

API Prototype
long UniKey_Get_Version( WORD* pHandle ,
DWORD* pVersion ) ;

Description
Get the current UniKey library version.

Parameters

Parameter	Meaning
*pHandle	[in] Dongle handle
*pVersion	[out] UniKey library version

Get UniKey Time

API Prototype
long UniKey_Get_Time( WORD* pHandle ,
DWORD* pYear ,
DWORD* pMonth ,
WORD* pDay ,
WORD* pHour ,
WORD* pMinute ,
WORD* pSecond ) ;

Description
Get UniKey Time’s real time clock’s time.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pYear [out] Year(input or output is 10, which refers to 2010)
*pMonth [out] Month
*pDay [out] Day
*pHour [out] Hour
*pMinute [out] Minute
*pSecond [out] Second

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_READ_TIME 230 Get UniKey time error

---

We can call UniKey_Check_Time to check if the UniKey dongle is a real time dongle. If we get ERROR_UNIKEY_READ_TIME, then the dongle is not a real time dongle.
---------------------------------------------------------------------------------------------------

Set UniKey Time

API Prototype
long UniKey_Set_Time( WORD* pHandle ,
DWORD* pYear ,
DWORD* pMonth ,
WORD* pDay ,
WORD* pHour ,
WORD* pMinute ,
WORD* pSecond ) ;

Description
Set UniKey Time’s real time clock’s time.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pYear [in] Year (input or output is 10, which refers to 2010)
*pMonth [in] Month
*pDay [in] Day
*pHour [in] Hour
*pMinute [in] Minute
*pSecond [in] Second

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_READ_TIME 230 Get UniKey time error
---------------------------------------------------------------------------------------------------

You need verify all the 4 passwords (vendor mode) to set the time for UniKey internal clock.
-------------------------------------------------------------------------------------------------

Set UniKey Time by Host’s Clock

API Prototype
long UniKey_Set_Time_Now( WORD* pHandle ) ;

Description
Set UniKey Time’s real time clock’s time by the host computer’s clock.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME 231 Write UniKey time error

Erase Real Time Module

API Prototype
long UniKey_Erase_Time_Module( WORD* pHandle ,
DWORD* pModule ) ;

Description
Erase/Reset a real time module, and all the info in the module will be erased including start, end or duration.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] Real time module number (0-15)

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME 231 Write UniKey time error

---

You need verify all the 4 passwords (vendor mode) to reset a module. If a real time module’s write once flag is enabled, only the first START_TIME call works. Later START_TIME call will return an error until this module is reset.
---------------------------------------------------------------------------------------------------

Set a Real Time Module’s Start Time

API Prototype
long UniKey_Set_Time_Module_Start_Time( WORD* pHandle ,
DWORD* pModule ,
WORD* pYear ,
WORD* pMonth ,
WORD* pDay ,
WORD* pHour ) ;

Description
Set a real time module’s start time.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] Real time module number (0-15)
*pYear [in] Year(input or output is 10, which refers to 2010)
*pMonth [in] Month
*pDay [in] Day
*pHour [in] Hour

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME_MODULE 231 Write time module error
ERROR_UNIKEY_TIME_MODULE_NOT_NULL 234 The real time module is not null, this error is returned when write once flag is set

---

Write Once flag is very useful for setting the Start for a real time module. If write once flag is set, only the first START_TIME call can set the start time for a module. All the later START_TIME will not work and return an ERROR_UNIKEY_TIME_MODULE_NOT_NULL. Software vendors may use this flag when the start for a module is not clear.
---------------------------------------------------------------------------------------------------

 

Set a Real Time Module’s Start Time by UniKey Dongle’s Clock

API Prototype
Long UniKey_Set_Time_Module_Start_Time_Now( WORD* pHandle ,
DWORD* pModule);

Description
Set a real time module’s start time as the now time in UniKey dongle’s clock.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] Real time module number (0-15)

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME_MODULE 231 Write time module error
ERROR_UNIKEY_TIME_MODULE_NOT_NULL 234 The real time module is not null, this error is returned when write once flag is set

 

Set a Real Time Module’s Start Time by Host’s Clock

API Prototype
long UniKey_Set_Time_Module_Start_Time_Now_PC(
WORD* pHandle ,
DWORD* pModule ) ;

Description
Set a real time module’s start time as the now time in host computer.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pHandle [in] Real time module number (0-15)

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME_MODULE 231 Write time module error
ERROR_UNIKEY_TIME_MODULE_NOT_NULL 234 The real time module is not null, this error is returned when write once flag is set

 

Set a Real Time Module’s End Time

API Prototype
long UniKey_Set_Time_Module_End_Time( WORD* pHandle ,
DWORD* pModule ,
WORD* pYear ,
WORD* pMonth ,
WORD* pDay ,
WORD* pHour ) ;

Description
Set a real time module’s end time.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pHandle [in] Real time module number (0-15)
*pYear [in] Year(input or output is 10, which refers to 2010)
*pMonth [in] Month
*pDay [in] Day
*pHour [in] Hour

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME_MODULE 231 Write time module error

 

Set a Real Time Module’s Duration

API Prototype
long UniKey_Set_Time_Module_Duration( WORD* pHandle ,
DWORD* pModule ,
DWORD* pDay ,
WORD* pHour ) ;

Description
Set the duration time for a specific real time module. The total duration is (*pDay)*24 + (*pHour) in hours.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] Real time module number (0-15)
*pDay [in] Number of days
*pHour [in] Number of hours

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_NEED_OPEN 212 Need open dongle before operating dongle
ERROR_UNIKEY_WRITE_TIME_MODULE 231 Write time module error

---

You need verify all the 4 passwords (vendor mode) to set the duration for a real time module.
-----------------------------------------------------------------------------------------------------

 

Check a UniKey Time License module

API Prototype
long UniKey_Check_Time_Module( WORD* pHandle ,
DWORD* pModule ,
DWORD* pRemainDays ,
WORD* pYear ,
WORD* pMonth ,
WORD* pDay ,
WORD* pHour ) ;

Description
Read the attributes of a specific UniKey Time license module.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] License module Number
*pRemainDays [out] Remain days
*pYear [in] Year (input or output is 10 ,which refers to 2010)
*pMonth [in] Month
*pDay [in] Day
*pHour [in] Hour

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE 202 Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN 212 No logon dongle before operating dongle
ERROR_UNIKEY_MODULE 216 License module error

---

A successful operation will result in “*pValue” with value from the Validity (1 = license module value is not zero).
The value of a license module cannot be read out directly and it is invisible to end users.
---------------------------------------------------------------------------------------------------

 

Check a UniKey Time License module Now

API Prototype
long UniKey_Check_Time_Module_Now( WORD* pHandle ,
DWORD* pModule ,
DWORD* pRemainDays ,
WORD* pRemainHours ) ;

Description
Read the attributes of a specific UniKey Time license module now.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] License module Number
*pRemainDays [out] Remain days
*pRemainHours [out] Remain hours

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE 202 Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN 212 No logon dongle before operating dongle
ERROR_UNIKEY_MODULE 216 License module error

---

A successful operation will result in “*pValue” with value from the Validity (1 = license module value is not zero).

The value of a license module cannot be read out directly and it is invisible to end users.
---------------------------------------------------------------------------------------------------

Check a UniKey Time License module Now PC

API Prototype
long UniKey_Check_Time_Module_Now_PC( WORD* pHandle ,
DWORD* pModule ,
DWORD* pRemainDays ,
WORD* pRemainHours) ;

Description
Read the attributes of a specific UniKey Time license module Now PC.

Parameters
Parameter Meaning
*pHandle [in] Dongle handle
*pModule [in] License module Number
*pRemainDays [out] Remain days
*pRemainHours [out] Remain hours

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_INVALID_ADDR_OR_SIZE 202 Read/Write address or length is wrong
ERROR_UNIKEY_NEED_OPEN 212 No logon dongle before operating dongle
ERROR_UNIKEY_MODULE 216 License module error

---

A successful operation will result in “*pValue” with value from the Validity (1 = license module value is not zero).

The value of a license module cannot be read out directly and it is invisible to end users.
----------------------------------------------------------------------------------------------------

 

Initialize File System

API Prototype
long __stdcall UniKey_FS_Init( WORD* handle ,
DWORD* PW1 ,
DWORD* PW2 ,
DWORD* PW3 ,
DWORD* PW4 ) ;

Description
The user needs to call this function to initialize the file system before calling other file system related functions. The password of the file system is 12345678.

Parameters
Parameter Meaning
*pHandle [in]Device handle
* pPassword1 [in]Password1
* pPassword2 [in]Password2
* pPassword3 [in]Password3
* pPassword4 [in]Password4

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_INVALID_PASSWORD_OR_ID 202 Invalid password or ID results in an error.

Format the file system

API Prototype
long __stdcall UniKey_FS_Format( WORD* handle ) ;

Description
Format the file system.

Parameters
Parameter Meaning
*pHandle [in]Device handle

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_FILE_EXIST 245 File already existed.

---

Note: The user needs to initialize the file system successfully before calling other file system related functions.
---------------------------------------------------------------------------------------------------

Create files

API Prototype
long __stdcall UniKey_FS_CreateFile( WORD* handle ,
BYTE* filename ) ;

Description
Create files.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*filename [in/out]Input/Output file name
---------------------------------------------------------------------------------------------------

Note: single slash ( "\") should be added before the name of the file.
---------------------------------------------------------------------------------------------------

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_ERR_SYS_UNINIT 246 The file system is not initialized.
ERROR_UNIKEY_FS_FILE_NAME 240 Wrong or invalid file name
ERROR_UNIKEY_FS_FILE_EXIST 245 The file already existed.

Delete files

API Prototype
long __stdcall UniKey_FS_DeleteFile( WORD* handle ,
BYTE* filename ) ;

Description
Delete files.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*filename [in/out]Input/Output file name

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_ERR_SYS_UNINIT 246 The file is not yet initialized.
ERROR_UNIKEY_FS_NO_FILE 241 No such file name.

Open files

API Prototype
long __stdcall UniKey_FS_File_Open( WORD* handle ,
BYTE* filename ) ;

Description
Open files.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*filename [in]Input/Output file name

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_NO_FILE 241 No such file name

Get system space

API Prototype
long __stdcall UniKey_FS_Get_Free_Size( WORD* handle ,
DWORD* usedsize ,
DWORD* freesize ) ;

Description
Get system space.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*usedsize [out]System space size which has already been used
*freesize [out]System space size that hasn’t been used

Return values
Marco Value Meaning
SUCCESS 0 Success

Modify file data

API Prototype
long __stdcall UniKey_FS_File_Modify_Data(
WORD* handle ,
DWORD* offset ,
DWORD* len ,
BYTE* buffer ) ;

Description
Modify file data.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*offset [in]Address to be modified
*len [in]Modify the data length
*buffer [in]Modify the data

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_ERR_OPEN_FILE 247 The file to be modified hasn’t been opened yet.
ERROR_UNIKEY_FS_FILE_OFFSET 242 Offset of file error

Append data to the end-of-file

API Prototype
long __stdcall UniKey_FS_File_Append_Data( WORD* handle ,
DWORD* len ,
BYTE* buffer ) ;

Description
Append data to the end-of-file.

Parameters
Parameter Meaning
*len [in]The length of the append data
*buffer [in]Append data

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_NO_MEMORY 244 Not enough free memory

Read file data

API Prototype
long__stdcall UniKey_FS_File_Read_Data( WORD* handle ,
DWORD * offset ,
DWORD* len ,
BYTE* buffer ) ;

Description
Read data file.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*offset [in]Read address
*len [in]Read the data length
*buffer [out]Read data

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_FS_ERR_OPEN_FILE 247 The file to be modified is not opened yet.
ERROR_UNIKEY_FS_FILE_OFFSET 242 Offset of file error.

Close files

API Prototype
long __stdcall UniKey_FS_File_Close( WORD* handle ,
BYTE* filename ) ;

Description
Close files.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*filename [in]file name
*len [in]Read the data length
*buffer [in]Read data

Return values
Marco Value Meaning
SUCCESS 0 Success

Get file list

API Prototype
long __stdcall UniKey_FS_File_Get_List( WORD* handle ,
DWORD* filecount ,
BYTE* filelist ) ;

Description
Get file list.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*filecount [out]The number of files
*filelist [out]

Return values
Marco Value Meaning
SUCCESS 0 Success

Get the file size

API Prototype
long __stdcall UniKey_FS_File_Get_Size(WORD* handle,
DWORD* filesize);

Description
Get the file size.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*filesize [out]The size of the file

Return values
Marco Value Meaning
SUCCESS 0 Success

Users reset file system password

API Prototype
long __stdcall UniKey_FS_Set_Password( WORD* handle ,
DWORD* PW1 ,
DWORD* PW2 ,
DWORD* PW3 ,
DWORD* PW4 ) ;

Description
Users reset the password to the file system.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*pPassword1 [in]Password 1
*pPassword2 [in]Password 2
*pPassword3 [in]Password 3
*pPassword4 [in]Password 4

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_GENERATE_NEW_PASSWORD 225 Fail to generate new password.

---------------------------------------------------------------------------------------------------

The reset of the password can only be successfully done after initializing the file system successfully.
-----------------------------------------------------------------------------------------------------

Generate a RSA Key

API Prototype
long __stdcall UniKey_RSA_Generate_Key( WORD* handle ,
WORD* KeyIndex ) ;

Description
UniKey Drive has encryption & decryption modules with 1024-bit RSA keys.
Calling this function can generate a 1024-bit RSA key.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*KeyIndex [in]Return the handle generated Key
`
Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The handle of the key is invalid.

Generate a DES Key

API Prototype
long __stdcall UniKey_DES_Generate_Key( WORD* handle ,
DWORD* KeyIndex ) ;

Description
Calling this function can generate a DES key.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*KeyIndex [in]Return the handle generated Key

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The handle of the key is invalid.

RSA Get key counts generated

API Prototype
long __stdcall UniKey_RSA_Get_Key_Counts( WORD* handle ,
DWORD* KeyIndexs ) ;

Description
Get the number of keys that are generated.

Parameters
Parameter Meaning
*Phandle [in]Device handle
*KeyIndex [out]The key counts returned

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The handle of the key is invalid.

DES Get key counts generated
API Prototype
long __stdcall UniKey_DES_Get_Key_Counts( WORD* handle ,
DWORD* KeyIndexs ) ;

Description
Get the number of keys that are generated.

Parameters
Parameter Meaning
*Phandle [in]Device handle
*KeyIndex [out]The key counts returned

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The handle of the key is invalid.

RSA encryption

API Prototype
long __stdcall UniKey_RSA_Encrypt( WORD* handle ,
WORD* KeyIndex ,
DWORD* Encrypt_Len ,
BYTE* Buffer ) ;

Description
Encrypt data using RSA.

Parameters
Parameter Meaning
*Phandle [in]Device handle
*KeyIndex [in]Encrypt & decrypt using the key handle
*Len [in]The length of encryption & decryption data
*Buffer [in/out]Input encrypted text and output plain text.

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_ENCRYPT_FAILED 228 Encryption failed.

RSA decryption

API Prototype
long __stdcall UniKey_RSA_Decrypt( WORD* handle ,
WORD* KeyIndex ,
DWORD* Decrypt_Len ,
BYTE* Buffer ) ;

Description
Decrypt data using RSA.

Parameters
Parameter Meaning
*Phandle [in]Device handle
*KeyIndex [in]Encrypt & decrypt using the key handle
*Len [in]The length of encryption & decryption data
*Buffer [in/out]Input encrypted text and output plain text.

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The key handle is invalid.
ERROR_UNIKEY_DECRYPT_FAILED 229 Decryption failed.

DES encryption

API Prototype
long __stdcall UniKey_DES1_Encrypt( WORD* handle ,
WORD* EncryptMode ,
WORD* KeyIndex ,
DWORD* Len ,
BYTE* Buffer ) ;

long __stdcall UniKey_DES2_Encrypt(
WORD* handle ,
WORD* EncryptMode ,
WORD* KeyIndex ,
DWORD* Len ,
BYTE* Buffer ) ;

long __stdcall UniKey_DES3_Encrypt( WORD* handle ,
WORD* EncryptMode ,
WORD* KeyIndex ,
DWORD* Len ,
BYTE* Buffer ) ;

Description
Encrypt data using DES.

Parameters
Parameter Meaning
*Phandle [in]Device handle
*KeyIndex [in]Encrypt & decrypt using the key handle
*Len [in]The length of encryption & decryption data
*Buffer [in/out]Input encrypted text and output plain text.

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The key handle is invalid.
ERROR_UNIKEY_ENCRYPT_FAILED 228 Encryption failed.

DES decryption

API Prototype
long __stdcall UniKey_DES1_Decrypt(
WORD* handle ,
WORD* DecryptMode ,
WORD* KeyIndex ,
DWORD *Len ,
BYTE* Buffer ) ;

long __stdcall UniKey_DES2_Decrypt( WORD* handle ,
WORD* DecryptMode ,
WORD* KeyIndex ,
DWORD* Len ,
BYTE* Buffer ) ;

long __stdcall UniKey_DES3_Decrypt( WORD* handle ,
WORD* DecryptMode ,
WORD* KeyIndex ,
DWORD* Len ,
BYTE* Buffer ) ;

Description
Encrypt data using DES.

Parameters
Parameter Meaning
*Phandle [in]Device handle
*KeyIndex [in]Encrypt & decrypt using the key handle
*Len [in]The length of encryption & decryption data
*Buffer [in/out]Input encrypted text and output plain text.

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The key handle is invalid.
ERROR_UNIKEY_DECRYPT_FAILED 229 Decryption failed.

Delete key 1

API Prototype
long __stdcall UniKey_RSA_Del_Key( WORD* handle ,
WORD* KeyIndex ) ;

Description
Delete a key.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*KeyIndex [in]The handle to be deleted

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The key handle is invalid.
KeyIndex <0 or KeyIndex > 3.

Delete key 2

API Prototype
long __stdcall UniKey_DES_Del_Key( WORD* handle ,
WORD* KeyIndex ) ;

Description
Delete a key.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*KeyIndex [in]The handle to be deleted

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The key handle is invalid.
KeyIndex <0 or KeyIndex > 14.

Get user counts

API Prototype
long __stdcall UniKey_Get_UserCount( WORD* handle ,
WORD* Count ) ;

Description
UniKey Drive can enable 32 concurrent users to logon. This function can be called to get the number of logon users.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*Count [in]Number of logon users returned

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_KEY_INDEX 239 The key handle is invalid.
KeyIndex <0 or KeyIndex > 14.

Only allow one user to logon

API Prototype
long __stdcall UniKey_Logon_Single( WORD* pHandle ,
DWORD* pPassword1 ,
DWORD* pPassword2 ,
DWORD* pPassword3 ,
DWORD* pPassword4 ) ;

Description
After calling this function, UniKey Drive only allows the active user to logon and other users will not be allowed to logon.

Parameters
Parameter Meaning
*pHandle [in]Device handle
*pPassword1 [in]Password 1
*pPassword2 [in]Password 2
*pPassword3 [in]Password 3
*pPassword4 [in]Password 4

Return values
Marco Value Meaning
SUCCESS 0 Success
ERROR_UNIKEY_INVALID_PASSWORD_OR_ID 202 The password or ID is invalid.

Logoff the active user

API Prototype
long __stdcall UniKey_Logoff( WORD* pHandle ) ;

Description
After calling this function, the active user will be logoff, without affecting other users’ logon status.

Parameters
Parameter Meaning
*pHandle [in]Device handle

Return values
Marco Value Meaning
SUCCESS 0 Success

Logoff all the users

API Prototype
long __stdcall UniKey_Logoff_All( WORD* pHandle ) ;

Description
After calling this function, all the users will be logoff.

Parameters
Parameter Meaning
*pHandle [in]Device handle

Return values
Marco Value Meaning
SUCCESS 0 Success 

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